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1 | /* |
2 | * macsonic.c |
3 | * |
4 | * (C) 2005 Finn Thain |
5 | * |
6 | * Converted to DMA API, converted to unified driver model, made it work as |
7 | * a module again, and from the mac68k project, introduced more 32-bit cards |
8 | * and dhd's support for 16-bit cards. |
9 | * |
10 | * (C) 1998 Alan Cox |
11 | * |
12 | * Debugging Andreas Ehliar, Michael Schmitz |
13 | * |
14 | * Based on code |
15 | * (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de) |
16 | * |
17 | * This driver is based on work from Andreas Busse, but most of |
18 | * the code is rewritten. |
19 | * |
20 | * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de) |
21 | * |
22 | * A driver for the Mac onboard Sonic ethernet chip. |
23 | * |
24 | * 98/12/21 MSch: judged from tests on Q800, it's basically working, |
25 | * but eating up both receive and transmit resources |
26 | * and duplicating packets. Needs more testing. |
27 | * |
28 | * 99/01/03 MSch: upgraded to version 0.92 of the core driver, fixed. |
29 | * |
30 | * 00/10/31 sammy@oh.verio.com: Updated driver for 2.4 kernels, fixed problems |
31 | * on centris. |
32 | */ |
33 | |
34 | #include <linux/kernel.h> |
35 | #include <linux/module.h> |
36 | #include <linux/types.h> |
37 | #include <linux/fcntl.h> |
38 | #include <linux/gfp.h> |
39 | #include <linux/interrupt.h> |
40 | #include <linux/init.h> |
41 | #include <linux/ioport.h> |
42 | #include <linux/in.h> |
43 | #include <linux/string.h> |
44 | #include <linux/delay.h> |
45 | #include <linux/nubus.h> |
46 | #include <linux/errno.h> |
47 | #include <linux/netdevice.h> |
48 | #include <linux/etherdevice.h> |
49 | #include <linux/skbuff.h> |
50 | #include <linux/platform_device.h> |
51 | #include <linux/dma-mapping.h> |
52 | #include <linux/bitrev.h> |
53 | #include <linux/slab.h> |
54 | |
55 | #include <asm/bootinfo.h> |
56 | #include <asm/system.h> |
57 | #include <asm/pgtable.h> |
58 | #include <asm/io.h> |
59 | #include <asm/hwtest.h> |
60 | #include <asm/dma.h> |
61 | #include <asm/macintosh.h> |
62 | #include <asm/macints.h> |
63 | #include <asm/mac_via.h> |
64 | |
65 | static char mac_sonic_string[] = "macsonic"; |
66 | |
67 | #include "sonic.h" |
68 | |
69 | /* These should basically be bus-size and endian independent (since |
70 | the SONIC is at least smart enough that it uses the same endianness |
71 | as the host, unlike certain less enlightened Macintosh NICs) */ |
72 | #define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \ |
73 | + lp->reg_offset)) |
74 | #define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \ |
75 | + lp->reg_offset)) |
76 | |
77 | /* use 0 for production, 1 for verification, >1 for debug */ |
78 | #ifdef SONIC_DEBUG |
79 | static unsigned int sonic_debug = SONIC_DEBUG; |
80 | #else |
81 | static unsigned int sonic_debug = 1; |
82 | #endif |
83 | |
84 | static int sonic_version_printed; |
85 | |
86 | /* For onboard SONIC */ |
87 | #define ONBOARD_SONIC_REGISTERS 0x50F0A000 |
88 | #define ONBOARD_SONIC_PROM_BASE 0x50f08000 |
89 | |
90 | enum macsonic_type { |
91 | MACSONIC_DUODOCK, |
92 | MACSONIC_APPLE, |
93 | MACSONIC_APPLE16, |
94 | MACSONIC_DAYNA, |
95 | MACSONIC_DAYNALINK |
96 | }; |
97 | |
98 | /* For the built-in SONIC in the Duo Dock */ |
99 | #define DUODOCK_SONIC_REGISTERS 0xe10000 |
100 | #define DUODOCK_SONIC_PROM_BASE 0xe12000 |
101 | |
102 | /* For Apple-style NuBus SONIC */ |
103 | #define APPLE_SONIC_REGISTERS 0 |
104 | #define APPLE_SONIC_PROM_BASE 0x40000 |
105 | |
106 | /* Daynalink LC SONIC */ |
107 | #define DAYNALINK_PROM_BASE 0x400000 |
108 | |
109 | /* For Dayna-style NuBus SONIC (haven't seen one yet) */ |
110 | #define DAYNA_SONIC_REGISTERS 0x180000 |
111 | /* This is what OpenBSD says. However, this is definitely in NuBus |
112 | ROM space so we should be able to get it by walking the NuBus |
113 | resource directories */ |
114 | #define DAYNA_SONIC_MAC_ADDR 0xffe004 |
115 | |
116 | #define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr) |
117 | |
118 | /* |
119 | * For reversing the PROM address |
120 | */ |
121 | |
122 | static inline void bit_reverse_addr(unsigned char addr[6]) |
123 | { |
124 | int i; |
125 | |
126 | for(i = 0; i < 6; i++) |
127 | addr[i] = bitrev8(addr[i]); |
128 | } |
129 | |
130 | static irqreturn_t macsonic_interrupt(int irq, void *dev_id) |
131 | { |
132 | irqreturn_t result; |
133 | unsigned long flags; |
134 | |
135 | local_irq_save(flags); |
136 | result = sonic_interrupt(irq, dev_id); |
137 | local_irq_restore(flags); |
138 | return result; |
139 | } |
140 | |
141 | static int macsonic_open(struct net_device* dev) |
142 | { |
143 | if (request_irq(dev->irq, sonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) { |
144 | printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq); |
145 | return -EAGAIN; |
146 | } |
147 | /* Under the A/UX interrupt scheme, the onboard SONIC interrupt comes |
148 | * in at priority level 3. However, we sometimes get the level 2 inter- |
149 | * rupt as well, which must prevent re-entrance of the sonic handler. |
150 | */ |
151 | if (dev->irq == IRQ_AUTO_3) |
152 | if (request_irq(IRQ_NUBUS_9, macsonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) { |
153 | printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, IRQ_NUBUS_9); |
154 | free_irq(dev->irq, dev); |
155 | return -EAGAIN; |
156 | } |
157 | return sonic_open(dev); |
158 | } |
159 | |
160 | static int macsonic_close(struct net_device* dev) |
161 | { |
162 | int err; |
163 | err = sonic_close(dev); |
164 | free_irq(dev->irq, dev); |
165 | if (dev->irq == IRQ_AUTO_3) |
166 | free_irq(IRQ_NUBUS_9, dev); |
167 | return err; |
168 | } |
169 | |
170 | static const struct net_device_ops macsonic_netdev_ops = { |
171 | .ndo_open = macsonic_open, |
172 | .ndo_stop = macsonic_close, |
173 | .ndo_start_xmit = sonic_send_packet, |
174 | .ndo_set_multicast_list = sonic_multicast_list, |
175 | .ndo_tx_timeout = sonic_tx_timeout, |
176 | .ndo_get_stats = sonic_get_stats, |
177 | .ndo_validate_addr = eth_validate_addr, |
178 | .ndo_change_mtu = eth_change_mtu, |
179 | .ndo_set_mac_address = eth_mac_addr, |
180 | }; |
181 | |
182 | static int __devinit macsonic_init(struct net_device *dev) |
183 | { |
184 | struct sonic_local* lp = netdev_priv(dev); |
185 | |
186 | /* Allocate the entire chunk of memory for the descriptors. |
187 | Note that this cannot cross a 64K boundary. */ |
188 | if ((lp->descriptors = dma_alloc_coherent(lp->device, |
189 | SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode), |
190 | &lp->descriptors_laddr, GFP_KERNEL)) == NULL) { |
191 | printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n", |
192 | dev_name(lp->device)); |
193 | return -ENOMEM; |
194 | } |
195 | |
196 | /* Now set up the pointers to point to the appropriate places */ |
197 | lp->cda = lp->descriptors; |
198 | lp->tda = lp->cda + (SIZEOF_SONIC_CDA |
199 | * SONIC_BUS_SCALE(lp->dma_bitmode)); |
200 | lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS |
201 | * SONIC_BUS_SCALE(lp->dma_bitmode)); |
202 | lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS |
203 | * SONIC_BUS_SCALE(lp->dma_bitmode)); |
204 | |
205 | lp->cda_laddr = lp->descriptors_laddr; |
206 | lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA |
207 | * SONIC_BUS_SCALE(lp->dma_bitmode)); |
208 | lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS |
209 | * SONIC_BUS_SCALE(lp->dma_bitmode)); |
210 | lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS |
211 | * SONIC_BUS_SCALE(lp->dma_bitmode)); |
212 | |
213 | dev->netdev_ops = &macsonic_netdev_ops; |
214 | dev->watchdog_timeo = TX_TIMEOUT; |
215 | |
216 | /* |
217 | * clear tally counter |
218 | */ |
219 | SONIC_WRITE(SONIC_CRCT, 0xffff); |
220 | SONIC_WRITE(SONIC_FAET, 0xffff); |
221 | SONIC_WRITE(SONIC_MPT, 0xffff); |
222 | |
223 | return 0; |
224 | } |
225 | |
226 | #define INVALID_MAC(mac) (memcmp(mac, "\x08\x00\x07", 3) && \ |
227 | memcmp(mac, "\x00\xA0\x40", 3) && \ |
228 | memcmp(mac, "\x00\x80\x19", 3) && \ |
229 | memcmp(mac, "\x00\x05\x02", 3)) |
230 | |
231 | static void __devinit mac_onboard_sonic_ethernet_addr(struct net_device *dev) |
232 | { |
233 | struct sonic_local *lp = netdev_priv(dev); |
234 | const int prom_addr = ONBOARD_SONIC_PROM_BASE; |
235 | unsigned short val; |
236 | |
237 | /* |
238 | * On NuBus boards we can sometimes look in the ROM resources. |
239 | * No such luck for comm-slot/onboard. |
240 | * On the PowerBook 520, the PROM base address is a mystery. |
241 | */ |
242 | if (hwreg_present((void *)prom_addr)) { |
243 | int i; |
244 | |
245 | for (i = 0; i < 6; i++) |
246 | dev->dev_addr[i] = SONIC_READ_PROM(i); |
247 | if (!INVALID_MAC(dev->dev_addr)) |
248 | return; |
249 | |
250 | /* |
251 | * Most of the time, the address is bit-reversed. The NetBSD |
252 | * source has a rather long and detailed historical account of |
253 | * why this is so. |
254 | */ |
255 | bit_reverse_addr(dev->dev_addr); |
256 | if (!INVALID_MAC(dev->dev_addr)) |
257 | return; |
258 | |
259 | /* |
260 | * If we still have what seems to be a bogus address, we'll |
261 | * look in the CAM. The top entry should be ours. |
262 | */ |
263 | printk(KERN_WARNING "macsonic: MAC address in PROM seems " |
264 | "to be invalid, trying CAM\n"); |
265 | } else { |
266 | printk(KERN_WARNING "macsonic: cannot read MAC address from " |
267 | "PROM, trying CAM\n"); |
268 | } |
269 | |
270 | /* This only works if MacOS has already initialized the card. */ |
271 | |
272 | SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); |
273 | SONIC_WRITE(SONIC_CEP, 15); |
274 | |
275 | val = SONIC_READ(SONIC_CAP2); |
276 | dev->dev_addr[5] = val >> 8; |
277 | dev->dev_addr[4] = val & 0xff; |
278 | val = SONIC_READ(SONIC_CAP1); |
279 | dev->dev_addr[3] = val >> 8; |
280 | dev->dev_addr[2] = val & 0xff; |
281 | val = SONIC_READ(SONIC_CAP0); |
282 | dev->dev_addr[1] = val >> 8; |
283 | dev->dev_addr[0] = val & 0xff; |
284 | |
285 | if (!INVALID_MAC(dev->dev_addr)) |
286 | return; |
287 | |
288 | /* Still nonsense ... messed up someplace! */ |
289 | |
290 | printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 " |
291 | "seems invalid, will use a random MAC\n"); |
292 | random_ether_addr(dev->dev_addr); |
293 | } |
294 | |
295 | static int __devinit mac_onboard_sonic_probe(struct net_device *dev) |
296 | { |
297 | /* Bwahahaha */ |
298 | static int once_is_more_than_enough; |
299 | struct sonic_local* lp = netdev_priv(dev); |
300 | int sr; |
301 | int commslot = 0; |
302 | |
303 | if (once_is_more_than_enough) |
304 | return -ENODEV; |
305 | once_is_more_than_enough = 1; |
306 | |
307 | if (!MACH_IS_MAC) |
308 | return -ENODEV; |
309 | |
310 | if (macintosh_config->ether_type != MAC_ETHER_SONIC) |
311 | return -ENODEV; |
312 | |
313 | printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. "); |
314 | |
315 | /* Bogus probing, on the models which may or may not have |
316 | Ethernet (BTW, the Ethernet *is* always at the same |
317 | address, and nothing else lives there, at least if Apple's |
318 | documentation is to be believed) */ |
319 | if (macintosh_config->ident == MAC_MODEL_Q630 || |
320 | macintosh_config->ident == MAC_MODEL_P588 || |
321 | macintosh_config->ident == MAC_MODEL_P575 || |
322 | macintosh_config->ident == MAC_MODEL_C610) { |
323 | unsigned long flags; |
324 | int card_present; |
325 | |
326 | local_irq_save(flags); |
327 | card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS); |
328 | local_irq_restore(flags); |
329 | |
330 | if (!card_present) { |
331 | printk("none.\n"); |
332 | return -ENODEV; |
333 | } |
334 | commslot = 1; |
335 | } |
336 | |
337 | printk("yes\n"); |
338 | |
339 | /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset |
340 | * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */ |
341 | dev->base_addr = ONBOARD_SONIC_REGISTERS; |
342 | if (via_alt_mapping) |
343 | dev->irq = IRQ_AUTO_3; |
344 | else |
345 | dev->irq = IRQ_NUBUS_9; |
346 | |
347 | if (!sonic_version_printed) { |
348 | printk(KERN_INFO "%s", version); |
349 | sonic_version_printed = 1; |
350 | } |
351 | printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n", |
352 | dev_name(lp->device), dev->base_addr); |
353 | |
354 | /* The PowerBook's SONIC is 16 bit always. */ |
355 | if (macintosh_config->ident == MAC_MODEL_PB520) { |
356 | lp->reg_offset = 0; |
357 | lp->dma_bitmode = SONIC_BITMODE16; |
358 | sr = SONIC_READ(SONIC_SR); |
359 | } else if (commslot) { |
360 | /* Some of the comm-slot cards are 16 bit. But some |
361 | of them are not. The 32-bit cards use offset 2 and |
362 | have known revisions, we try reading the revision |
363 | register at offset 2, if we don't get a known revision |
364 | we assume 16 bit at offset 0. */ |
365 | lp->reg_offset = 2; |
366 | lp->dma_bitmode = SONIC_BITMODE16; |
367 | |
368 | sr = SONIC_READ(SONIC_SR); |
369 | if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101) |
370 | /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */ |
371 | lp->dma_bitmode = SONIC_BITMODE32; |
372 | else { |
373 | lp->dma_bitmode = SONIC_BITMODE16; |
374 | lp->reg_offset = 0; |
375 | sr = SONIC_READ(SONIC_SR); |
376 | } |
377 | } else { |
378 | /* All onboard cards are at offset 2 with 32 bit DMA. */ |
379 | lp->reg_offset = 2; |
380 | lp->dma_bitmode = SONIC_BITMODE32; |
381 | sr = SONIC_READ(SONIC_SR); |
382 | } |
383 | printk(KERN_INFO |
384 | "%s: revision 0x%04x, using %d bit DMA and register offset %d\n", |
385 | dev_name(lp->device), sr, lp->dma_bitmode?32:16, lp->reg_offset); |
386 | |
387 | #if 0 /* This is sometimes useful to find out how MacOS configured the card. */ |
388 | printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device), |
389 | SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff); |
390 | #endif |
391 | |
392 | /* Software reset, then initialize control registers. */ |
393 | SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); |
394 | |
395 | SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS | |
396 | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | |
397 | (lp->dma_bitmode ? SONIC_DCR_DW : 0)); |
398 | |
399 | /* This *must* be written back to in order to restore the |
400 | * extended programmable output bits, as it may not have been |
401 | * initialised since the hardware reset. */ |
402 | SONIC_WRITE(SONIC_DCR2, 0); |
403 | |
404 | /* Clear *and* disable interrupts to be on the safe side */ |
405 | SONIC_WRITE(SONIC_IMR, 0); |
406 | SONIC_WRITE(SONIC_ISR, 0x7fff); |
407 | |
408 | /* Now look for the MAC address. */ |
409 | mac_onboard_sonic_ethernet_addr(dev); |
410 | |
411 | /* Shared init code */ |
412 | return macsonic_init(dev); |
413 | } |
414 | |
415 | static int __devinit mac_nubus_sonic_ethernet_addr(struct net_device *dev, |
416 | unsigned long prom_addr, |
417 | int id) |
418 | { |
419 | int i; |
420 | for(i = 0; i < 6; i++) |
421 | dev->dev_addr[i] = SONIC_READ_PROM(i); |
422 | |
423 | /* Some of the addresses are bit-reversed */ |
424 | if (id != MACSONIC_DAYNA) |
425 | bit_reverse_addr(dev->dev_addr); |
426 | |
427 | return 0; |
428 | } |
429 | |
430 | static int __devinit macsonic_ident(struct nubus_dev *ndev) |
431 | { |
432 | if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC && |
433 | ndev->dr_sw == NUBUS_DRSW_SONIC_LC) |
434 | return MACSONIC_DAYNALINK; |
435 | if (ndev->dr_hw == NUBUS_DRHW_SONIC && |
436 | ndev->dr_sw == NUBUS_DRSW_APPLE) { |
437 | /* There has to be a better way to do this... */ |
438 | if (strstr(ndev->board->name, "DuoDock")) |
439 | return MACSONIC_DUODOCK; |
440 | else |
441 | return MACSONIC_APPLE; |
442 | } |
443 | |
444 | if (ndev->dr_hw == NUBUS_DRHW_SMC9194 && |
445 | ndev->dr_sw == NUBUS_DRSW_DAYNA) |
446 | return MACSONIC_DAYNA; |
447 | |
448 | if (ndev->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC && |
449 | ndev->dr_sw == 0) { /* huh? */ |
450 | return MACSONIC_APPLE16; |
451 | } |
452 | return -1; |
453 | } |
454 | |
455 | static int __devinit mac_nubus_sonic_probe(struct net_device *dev) |
456 | { |
457 | static int slots; |
458 | struct nubus_dev* ndev = NULL; |
459 | struct sonic_local* lp = netdev_priv(dev); |
460 | unsigned long base_addr, prom_addr; |
461 | u16 sonic_dcr; |
462 | int id = -1; |
463 | int reg_offset, dma_bitmode; |
464 | |
465 | /* Find the first SONIC that hasn't been initialized already */ |
466 | while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, |
467 | NUBUS_TYPE_ETHERNET, ndev)) != NULL) |
468 | { |
469 | /* Have we seen it already? */ |
470 | if (slots & (1<<ndev->board->slot)) |
471 | continue; |
472 | slots |= 1<<ndev->board->slot; |
473 | |
474 | /* Is it one of ours? */ |
475 | if ((id = macsonic_ident(ndev)) != -1) |
476 | break; |
477 | } |
478 | |
479 | if (ndev == NULL) |
480 | return -ENODEV; |
481 | |
482 | switch (id) { |
483 | case MACSONIC_DUODOCK: |
484 | base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS; |
485 | prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE; |
486 | sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 | |
487 | SONIC_DCR_TFT0; |
488 | reg_offset = 2; |
489 | dma_bitmode = SONIC_BITMODE32; |
490 | break; |
491 | case MACSONIC_APPLE: |
492 | base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS; |
493 | prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE; |
494 | sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0; |
495 | reg_offset = 0; |
496 | dma_bitmode = SONIC_BITMODE32; |
497 | break; |
498 | case MACSONIC_APPLE16: |
499 | base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS; |
500 | prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE; |
501 | sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | |
502 | SONIC_DCR_PO1 | SONIC_DCR_BMS; |
503 | reg_offset = 0; |
504 | dma_bitmode = SONIC_BITMODE16; |
505 | break; |
506 | case MACSONIC_DAYNALINK: |
507 | base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS; |
508 | prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE; |
509 | sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | |
510 | SONIC_DCR_PO1 | SONIC_DCR_BMS; |
511 | reg_offset = 0; |
512 | dma_bitmode = SONIC_BITMODE16; |
513 | break; |
514 | case MACSONIC_DAYNA: |
515 | base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS; |
516 | prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR; |
517 | sonic_dcr = SONIC_DCR_BMS | |
518 | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1; |
519 | reg_offset = 0; |
520 | dma_bitmode = SONIC_BITMODE16; |
521 | break; |
522 | default: |
523 | printk(KERN_ERR "macsonic: WTF, id is %d\n", id); |
524 | return -ENODEV; |
525 | } |
526 | |
527 | /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset |
528 | * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */ |
529 | dev->base_addr = base_addr; |
530 | lp->reg_offset = reg_offset; |
531 | lp->dma_bitmode = dma_bitmode; |
532 | dev->irq = SLOT2IRQ(ndev->board->slot); |
533 | |
534 | if (!sonic_version_printed) { |
535 | printk(KERN_INFO "%s", version); |
536 | sonic_version_printed = 1; |
537 | } |
538 | printk(KERN_INFO "%s: %s in slot %X\n", |
539 | dev_name(lp->device), ndev->board->name, ndev->board->slot); |
540 | printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n", |
541 | dev_name(lp->device), SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset); |
542 | |
543 | #if 0 /* This is sometimes useful to find out how MacOS configured the card. */ |
544 | printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device), |
545 | SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff); |
546 | #endif |
547 | |
548 | /* Software reset, then initialize control registers. */ |
549 | SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); |
550 | SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0)); |
551 | /* This *must* be written back to in order to restore the |
552 | * extended programmable output bits, since it may not have been |
553 | * initialised since the hardware reset. */ |
554 | SONIC_WRITE(SONIC_DCR2, 0); |
555 | |
556 | /* Clear *and* disable interrupts to be on the safe side */ |
557 | SONIC_WRITE(SONIC_IMR, 0); |
558 | SONIC_WRITE(SONIC_ISR, 0x7fff); |
559 | |
560 | /* Now look for the MAC address. */ |
561 | if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0) |
562 | return -ENODEV; |
563 | |
564 | /* Shared init code */ |
565 | return macsonic_init(dev); |
566 | } |
567 | |
568 | static int __devinit mac_sonic_probe(struct platform_device *pdev) |
569 | { |
570 | struct net_device *dev; |
571 | struct sonic_local *lp; |
572 | int err; |
573 | |
574 | dev = alloc_etherdev(sizeof(struct sonic_local)); |
575 | if (!dev) |
576 | return -ENOMEM; |
577 | |
578 | lp = netdev_priv(dev); |
579 | lp->device = &pdev->dev; |
580 | SET_NETDEV_DEV(dev, &pdev->dev); |
581 | platform_set_drvdata(pdev, dev); |
582 | |
583 | /* This will catch fatal stuff like -ENOMEM as well as success */ |
584 | err = mac_onboard_sonic_probe(dev); |
585 | if (err == 0) |
586 | goto found; |
587 | if (err != -ENODEV) |
588 | goto out; |
589 | err = mac_nubus_sonic_probe(dev); |
590 | if (err) |
591 | goto out; |
592 | found: |
593 | err = register_netdev(dev); |
594 | if (err) |
595 | goto out; |
596 | |
597 | printk("%s: MAC %pM IRQ %d\n", dev->name, dev->dev_addr, dev->irq); |
598 | |
599 | return 0; |
600 | |
601 | out: |
602 | free_netdev(dev); |
603 | |
604 | return err; |
605 | } |
606 | |
607 | MODULE_DESCRIPTION("Macintosh SONIC ethernet driver"); |
608 | module_param(sonic_debug, int, 0); |
609 | MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)"); |
610 | MODULE_ALIAS("platform:macsonic"); |
611 | |
612 | #include "sonic.c" |
613 | |
614 | static int __devexit mac_sonic_device_remove (struct platform_device *pdev) |
615 | { |
616 | struct net_device *dev = platform_get_drvdata(pdev); |
617 | struct sonic_local* lp = netdev_priv(dev); |
618 | |
619 | unregister_netdev(dev); |
620 | dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode), |
621 | lp->descriptors, lp->descriptors_laddr); |
622 | free_netdev(dev); |
623 | |
624 | return 0; |
625 | } |
626 | |
627 | static struct platform_driver mac_sonic_driver = { |
628 | .probe = mac_sonic_probe, |
629 | .remove = __devexit_p(mac_sonic_device_remove), |
630 | .driver = { |
631 | .name = mac_sonic_string, |
632 | .owner = THIS_MODULE, |
633 | }, |
634 | }; |
635 | |
636 | static int __init mac_sonic_init_module(void) |
637 | { |
638 | return platform_driver_register(&mac_sonic_driver); |
639 | } |
640 | |
641 | static void __exit mac_sonic_cleanup_module(void) |
642 | { |
643 | platform_driver_unregister(&mac_sonic_driver); |
644 | } |
645 | |
646 | module_init(mac_sonic_init_module); |
647 | module_exit(mac_sonic_cleanup_module); |
648 |
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